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BundleStack

Turn single orders into bigger carts

Quantity breaks and volume discounts that grow order value — Buy 2 save 10%, Buy 3 save 15% — with a product-page widget and automatic Shopify discount sync. No code required.

Freeto get started
3 stepsguided setup
Unlimitedoffers included

Install on Shopify

Add BundleStack from the Shopify App Store, then open it from Apps in your admin. Installation and authentication stay on Shopify.

Install on Shopify App Store

Everything you need to grow AOV

BundleStack focuses on quantity breaks done right — fast setup, a product-page widget, and pricing that does not scale with your revenue.

  • 📦

    Quantity break offers

    Create tiered discounts like Buy 2 save 10%, Buy 3 save 15% — synced automatically as Shopify discounts at checkout.

  • 🎨

    Theme-native widget

    Drop the BundleStack block on your product page. Shoppers see offers instantly and pick a tier with one click.

  • 💰

    Simple pricing

    Free includes unlimited quantity breaks, BOGO, and product-page upsells. Pro is $2/month for extra offer types and email support.

How we compare to other apps

Most quantity-break apps charge $7–30/month or cap the free plan by revenue. All-in-one AOV suites cost more and take longer to set up. BundleStack keeps the core offers free.

What you getBundleStackQuantity-break appsAOV suites
Typical priceFree; Pro $2/moOften $7–30/mo, or a revenue-capped free planOften $20–100+/mo
Quantity breaksUnlimited, no revenue capYes — this is the core productYes, plus many other offer types
BOGOIncluded on FreeUsually on a paid planUsually included
Product-page upsell / FBTIncluded on FreeSometimesUsually a flagship feature
Gifts, mix & match, builders, couponsProVaries by appUsually included
Checkout discountsShopify Function — automaticFunctions on some plans; others still use codesUsually automatic
Product-page widgetTheme block + app embedUsuallyUsually, often more templates
Reviews and installsNewer appOften thousands of reviewsOften thousands of reviews

Specialist apps include listings like Bundler and Kaching. AOV suites include broader tools like Bold, Pumper, and Rebuy. Competitor prices and features change — check each App Store listing.

Where BundleStack wins

  • No revenue cap on Free for quantity breaks, BOGO, and product-page upsells.
  • Pro is $2/month — extra offer types plus email support — instead of a $10–30 plan.
  • Discounts apply at checkout through a Shopify Function, not a code shoppers have to enter.
  • Uninstall removes the discounts BundleStack created.
  • Admin stays small: pick products, set tiers, go live.

Where others are stronger

  • Fewer public reviews and installs than Bundler, Kaching, Bold, or Rebuy, so social proof is weaker.
  • The theme embed still needs a Save in the theme editor before the widget shows on the live store.
  • Mix & match, free gifts, bundle builders, and coupons are Pro-only.
  • Not a merchandising platform — no email flows, A/B tests, or cart-drawer ecosystem.
  • Free-gift discounts only apply when the gift is already in the cart.

Up and running in 3 steps

  1. 1

    Install & connect

    Add BundleStack from the Shopify App Store and authorize access through Shopify.

  2. 2

    Create an offer

    Pick products, set quantity tiers, and activate — discounts sync to Shopify automatically.

  3. 3

    Add the widget

    Enable the theme block on your product template and start boosting average order value.